CN214818362U - Screw assembling jig - Google Patents

Abstract

The application discloses a screw assembling jig which comprises a base, a cover plate and a pre-fixing structure; the base is provided with a first containing groove, the first containing groove is provided with an opening end, the first containing groove is suitable for containing an object to be assembled, and an assembling screw hole of the object to be assembled is exposed out of the opening end; the cover plate is rotatably or detachably connected with the base to cover the opening end of the first accommodating groove, and is provided with a screw positioning hole corresponding to the assembly screw hole; the pre-fixing structure is rotatably or detachably connected to the side wall of the base, wherein a part of the pre-fixing structure can be clamped between the base and the cover plate, so that the part of the pre-fixing structure located in the first accommodating groove is abutted to the object to be assembled. The application discloses screw assembly tool can treat before the assembly screw that the assembly object carries out stable pre-fixing.

Description

Screw assembling jig

Technical Field

The application relates to accessory machining auxiliary tool technical field, concretely relates to screw assembly jig.

Background

With the increasing requirements of people on the appearance and the photographing function of the mobile phone, whether the mobile phone rear photographing support and the shell can be assembled more appropriately becomes an important test on the quality of the mobile phone. The rear-view support is a structure for bearing the camera module, and when the assembly between the rear-view support and the shell is not fit, the camera module is easily extruded, so that the camera and the lens are eccentric, and the problem of poor use feeling is caused; meanwhile, the problems of insufficient contact between the support antenna and the elastic sheet, micro-fracture of the support and the like are easily caused, and the signal is weak or the signal cannot be acquired in the process of using the mobile phone by a user.

At present, the traditional assembly scheme of the mobile phone rear camera support is as follows: firstly, a plurality of cameras are installed on the middle frame, then the rear-view support is covered on the middle frame, then the pre-fixed rear-view support is manually pressed to prevent the rear-view support from being dislocated with the middle frame, the state is kept, screws are screwed in alignment with assembly screw holes in the rear-view support, and the rear-view support and the middle frame are fixed.

However, in the process of manually pressing the rear camera support, it is difficult to precisely control the force of the hand, which easily causes the rear camera support to be frequently pressed in the Z direction (thickness direction) of the mobile phone, thereby causing damage to the rear camera support.

SUMMERY OF THE UTILITY MODEL

In view of this, the application provides a screw assembly jig, can treat before the assembly screw that the object carries out stable pre-fixing. The following technical scheme is specifically adopted in the application:

a screw assembling jig comprises a base, a cover plate and a pre-fixing structure;

the base is provided with a first accommodating groove, the first accommodating groove is provided with an opening end, the first accommodating groove is suitable for accommodating an object to be assembled, and an assembling screw hole of the object to be assembled is exposed out of the opening end;

the cover plate is rotatably or detachably connected with the base to cover the opening end of the first accommodating groove, and is provided with a screw positioning hole corresponding to the assembly screw hole;

the pre-fixing structure is rotatably or detachably connected to the side wall of the base, wherein a part of the pre-fixing structure can be clamped between the base and the cover plate, so that the part of the pre-fixing structure located in the first accommodating groove is abutted to the object to be assembled.

Optionally, the pre-fixing structure comprises a rotating part, a connecting part and a pre-pressing part which are connected in sequence;

the rotating part is connected with the side wall of the base and can rotate around the connection part of the rotating part and the base so as to drive the connecting part and the prepressing part to be close to or far away from the first accommodating groove;

the connecting part is clamped between the base and the cover plate;

the prepressing part is abutted against the object to be assembled at the opening end of the first accommodating groove.

Optionally, the rotating part comprises a rotating seat and a rotating body;

the rotating seat is connected with the side wall of the base and is provided with a first rotating shaft;

the rotating body is sleeved on the first rotating shaft and can rotate around the axis of the first rotating shaft.

Optionally, the side wall of the base is provided with a plurality of first connecting structures;

the rotating seat is provided with a second connecting structure, and the second connecting structure is connected with one of the first connecting structures, so that the orthographic projection of the prepressing part on the bottom of the first accommodating groove is not overlapped with the orthographic projection of the screw positioning hole on the bottom of the first accommodating groove.

Optionally, the base has a first magnet;

the pre-fixing structure further comprises a second magnet, and the second magnet is connected with the pre-pressing part;

the first magnet and the second magnet correspond in position and attract each other.

Optionally, the pre-fixing structure further comprises a protective cushion block, and the protective cushion block is connected with one side, facing the first accommodating groove, of the pre-pressing portion;

the prepressing part is abutted against the object to be assembled through the protection cushion block.

Optionally, the cover plate comprises a frame and a face cover, and the frame and the face cover are detachably connected;

the frame surrounds the face cover, a first end of the frame is hinged with the base, a second end of the frame is clamped with the base, and the first end is opposite to the second end;

the face cover is provided with the screw positioning hole and a notch, the size of the notch is larger than that of the prepressing part, and the orthographic projection of the prepressing part on the plane where the face cover is located in the notch.

Optionally, the cover plate comprises at least two face covers, and the positions of the screw positioning holes and the notches of the at least two face covers are different from each other;

the frame is connected with one of the at least two face covers, and the screw positioning hole of the face cover corresponds to the assembly screw hole of the object to be assembled.

Optionally, one side edge of the frame is provided with an avoidance groove, the avoidance groove faces the base opening, and the avoidance groove penetrates through the side edge in the width direction;

the avoiding groove corresponds to the connecting part, and the connecting part is positioned in the avoiding groove.

Optionally, the base comprises a shell, a bottom die and an elastic member;

the shell is provided with a second containing groove, and the bottom die and the elastic piece are both positioned in the second containing groove;

the bottom die is provided with the first accommodating groove, and the bottom of the first accommodating groove is provided with an avoiding opening;

one end of the elastic piece is connected with the bottom of the second accommodating groove, and the other end of the elastic piece protrudes out of the bottom of the first accommodating groove from the avoiding opening and abuts against the object to be assembled.

Optionally, the inner side wall of the first accommodating groove is provided with a plurality of limiting grooves, and the bottom of each limiting groove is provided with a mounting hole;

each limiting groove is internally provided with a limiting block, each limiting block is provided with a strip-shaped hole, and a bolt penetrates through the strip-shaped hole and the mounting hole to connect the limiting block and the limiting groove together;

at least one of the limiting blocks protrudes out of the inner side wall of the first accommodating groove and abuts against the object to be assembled so as to limit the object to be assembled to move in the first accommodating groove.

Optionally, the first side wall of the housing has a second rotating shaft, the second side wall of the housing has a first clamping structure, and the first side wall is opposite to the second side wall;

the first end of the cover plate is rotatably connected with the base through the second rotating shaft, the second end of the cover plate is provided with a second clamping structure, and the first end is opposite to the second end;

the first clamping structure is suitable for being matched and connected with the second clamping structure.

Optionally, the screw assembling jig further comprises a nitrogen spring;

one end of the nitrogen spring is connected with a third side wall of the shell and close to the first side wall of the shell, and the third side wall is positioned between the first side wall and the second side wall;

the other end of the nitrogen spring is connected with a third end of the cover plate and close to a second end of the cover plate, and the third end is positioned between the first end and the second end;

when the first clamping structure is connected with the second clamping structure in a matched mode, the nitrogen spring is in a contraction state.

The beneficial effects of the embodiment of the application at least lie in:

when the screw assembling jig provided by the embodiment of the application is used, an object to be assembled is firstly placed in the first accommodating groove of the base, the position of the object to be assembled in the first accommodating groove is fixed, and at the moment, an assembling screw hole of the object to be assembled is exposed out of the opening end of the first accommodating groove; then, rotating the pre-fixing structure to enable a part of the pre-fixing structure to rotate to the opening end of the first accommodating groove to be abutted against a part of structure of the object to be assembled except the assembling screw hole, so that the object to be assembled is tightly pressed, and the position of the object to be assembled is ensured not to deviate; rotating or installing the cover plate to cover the opening end of the first accommodating groove, pressing the cover plate on the pre-fixing structure to prevent the pre-fixing structure from being unloaded, wherein the screw positioning holes on the cover plate correspond to the assembly screw holes of the object to be assembled, that is, the assembly screw holes of the cover plate are exposed from the screw positioning holes of the cover plate although the cover plate covers the middle frame and the rear-view support; finally, an operator can place the screw in the assembling screw hole and tighten the screw, so that the screw assembling of the object to be assembled is completed. Therefore, the screw assembly jig provided by the embodiment of the application can be used for stably pre-fixing an object to be assembled before assembling the screw, so that the accurate assembly of the screw is realized in an auxiliary manner, and the damage to the object to be assembled, which is possibly caused by the position deviation and improper force application during the manual assembly of the hand is avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a screw assembling jig according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a pre-fixing structure provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a rotating portion according to an embodiment of the present disclosure;

FIG. 4 is an assembly view of a rotating part on a base according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of another pre-fixing structure provided in the embodiments of the present application;

FIG. 6 is a schematic structural diagram of another pre-fixing structure provided in an embodiment of the present application;

fig. 7 is a schematic structural diagram of a cover plate according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a bezel provided in an embodiment of the present application;

fig. 9 is a schematic structural diagram of a base provided in an embodiment of the present application;

fig. 10 is a schematic structural view of a bottom mold according to an embodiment of the present disclosure;

FIG. 11 is an assembly view of a cover plate on a base provided in accordance with an embodiment of the present application;

FIG. 12 is a force analysis diagram of a nitrogen spring provided in an embodiment of the present application when a cover plate and a base are clamped together;

fig. 13 is a force analysis diagram of the nitrogen spring provided in the embodiment of the present application when the cover plate and the base are separated.

Reference numerals:

00. assembling a screw hole; 01. a middle frame; 02. a rear camera support;

1. a base; 11. a housing; 111. a second accommodating groove; 112. a first connecting structure; 113. a first side wall; 114. a second rotating shaft; 115. a second side wall; 116. a first clamping structure; 117. a third side wall; 12. Bottom die; 121. a first accommodating groove; 1211. avoiding the opening; 1212. a limiting groove; 1213. a limiting block; 12131, strip-shaped holes; 1214. a bolt; 13. an elastic member; 14. a first magnet;

2. a cover plate; 21. a frame; 211. a first end; 212. a second end; 213. a second clamping structure; 214. A third end; 215. an avoidance groove; 22. a face cover; 221. screw positioning holes; 222. a notch;

3. a pre-fixing structure; 31. a rotating part; 311. a rotating seat; 3111. a first rotating shaft; 3112. a second connecting structure; 312. rotating the body; 32. a connecting portion; 33. a prepressing section; 331. a protective cushion block; 34. A second magnet;

4. a nitrogen spring.

Detailed Description

In order to make the technical solutions and advantages of the present application clearer, the following will describe the embodiments of the present application in further detail with reference to the accompanying drawings.

The embodiment of the application provides a screw assembly jig for electronic equipment such as cell-phone, flat board or other types of equipment assembly screw. Fig. 1 is a schematic structural diagram of a screw assembling jig provided in an embodiment of the present application. Referring to fig. 1, the screw assembling jig comprises a base 1, a cover plate 2 and a pre-fixing structure 3; the base 1 is provided with a first accommodating groove 121, the first accommodating groove 121 is provided with an opening end, the first accommodating groove 121 is suitable for accommodating an object to be assembled, and an assembling screw hole 00 of the object to be assembled is exposed out of the opening end; the cover plate 2 is rotatably or detachably connected with the base 1 to cover the opening end of the first accommodating groove 121, the cover plate 2 is provided with a screw positioning hole 221, and the screw positioning hole 221 corresponds to the assembly screw hole 00; the pre-fixing structure 3 is rotatably or detachably connected to the sidewall of the base 1, wherein a portion of the pre-fixing structure 3 can be clamped between the base 1 and the cover 2, so that the portion of the pre-fixing structure 3 located in the first receiving groove 121 abuts against the object to be assembled.

The base 1 is a member for accommodating an object to be assembled. The base 1 has a first receiving groove 121, and the object to be assembled is generally placed in the first receiving groove 121 and is limited by the shape and/or size of the first receiving groove 121, so that there is no relative movement between the object to be assembled and the base 1 in the length and width directions of the base 1. In use, the base 1 is typically placed or secured on a countertop, and to prevent the base 1 from sliding on the countertop, the bottom surface of the base 1 that contacts the countertop may have a non-slip mat.

The cover plate 2 and the pre-fixing structure 3 are matched to realize pre-fixing of the object to be assembled, wherein the cover plate 2 is used for covering the object to be assembled exposed from the opening end of the first accommodating groove 121, and the pre-fixing structure 3 can directly abut against the object to be assembled to prevent the position of the object to be assembled from being deviated. Specifically, when the cover plate 2 covers the opening end of the first receiving groove 121, a part of the pre-fixing structure 3 may be clamped between the base 1 and the cover plate 2, and under the pressure of the cover plate 2, the pre-fixing structure 3 may abut against one side of the object to be assembled, which is exposed out of the opening end of the first receiving groove 121, so as to apply a force perpendicular to the plane of the opening end to the object to be assembled, and under the action of the pressure, the object to be assembled is not easy to move, thereby facilitating the assembly of the screw.

Taking the object to be assembled as the middle frame 01 and the rear-view support 02 of the mobile phone as an example, specifically, referring to fig. 1, when the screw assembling jig is used, the middle frame 01 of the mobile phone can be firstly placed in the first accommodating groove 121 of the base 1, and the position of the middle frame 01 in the first accommodating groove 121 is fixed, and at this time, the assembling screw hole 00 of the middle frame 01 can be exposed from the opening end of the first accommodating groove 121; then covering the rear camera support 02 at a corresponding position on the middle frame 01, so that the assembly screw holes 00 of the rear camera support 02 are aligned with the assembly screw holes 00 of the middle frame 01; then, the pre-fixing structure 3 is rotated, so that a part of the pre-fixing structure 3 is rotated to the opening end of the first accommodating groove 121 to abut against a part of the structure of the rear camera bracket 02 except for the assembly screw hole 00, and the rear camera bracket 02 is tightly pressed on the middle frame 01; next, the cover plate 2 is rotated or installed to cover the opening end of the first receiving groove 121, at this time, the cover plate 2 is pressed on the pre-fixing structure 3 to prevent the pre-fixing structure 3 from being removed, the screw positioning holes 221 on the cover plate 2 correspond to the assembly screw holes 00 of the rear-view bracket 02 and the middle frame 01, that is, at this time, although the cover plate 2 covers the middle frame 01 and the rear-view bracket 02, the assembly screw holes 00 thereof are exposed from the screw positioning holes 221 of the cover plate 2; finally, the operator can put the screws in the assembly screw holes 00 and tighten them, thereby completing the screw assembly of the rear camera bracket 02 and the center frame 01.

Therefore, compared with the mode that the rear camera support 02 is pre-fixed on the middle frame 01 by the adhesive tape and then is assembled by screws in the prior art, the screw assembling jig provided by the embodiment of the application is used for assembling, so that the fixing efficiency and effect are improved, and the auxiliary material cost and the working time are reduced; compared with the mode that screws are assembled by directly pressing the middle frame 01 and the rear-view support 02 with hands, the screw assembling jig provided by the embodiment of the application is used for assembling, so that the rear-view support 02 which is possibly caused by position deviation and improper force application when hands act is avoided from being damaged. The screw assembly jig that this application embodiment provided can treat before the assembly screw that the assembly object carries out stable pre-fixing to supplementary accurate assembly that realizes the screw.

Alternatively, referring to fig. 2, the pre-fixing structure 3 includes a rotating portion 31, a connecting portion 32 and a pre-pressing portion 33 connected in sequence; the rotating part 31 is connected with the side wall of the base 1 and can rotate around the connection part of the rotating part and the base 1 to drive the connecting part 32 and the prepressing part 33 to be close to or far away from the first accommodating groove 121; the connecting portion 32 is sandwiched between the base 1 and the cover 2; the prepressing section 33 abuts against the object to be assembled at the opening end of the first receiving groove 121.

The rotating part 31 is a member for effecting control of the pre-fixing structure 3 against or away from the object to be assembled. The rotation direction of the rotation portion 31 may be perpendicular to the plane where the open end of the first accommodating groove 121 is located, so that the prepressing portion 33 enters or leaves the first accommodating groove 121 above the open end; alternatively, the rotation direction of the rotation portion 31 may also be parallel to the plane where the opening end of the first accommodation groove 121 is located, so that the prepressing portion 33 enters or leaves the first accommodation groove 121 at the side of the opening end.

Taking the rotation direction of the rotating portion 31 perpendicular to the plane where the opening end of the first receiving groove 121 is located as an example, in one possible structure, as shown in fig. 3, the rotating portion 31 may include a rotating seat 311 and a rotating body 312; the rotating base 311 is connected with the side wall of the base 1, and the rotating base 311 is provided with a first rotating shaft 3111; the rotating body 312 is sleeved on the first rotating shaft 3111 and can rotate around the axis of the first rotating shaft 3111. The portion of the rotating body 312 sleeved on the first rotating shaft 3111 is usually not located at any end of the rotating body 312, but is located between the two ends; alternatively, the portion of the rotating body 312 fitted over the first rotating shaft 3111 may be an end portion of the rotating body 312 connected to the connecting portion 32. Therefore, no matter how the rotating body 312 rotates, a part of structure of the rotating body is located on the outer side of the base 1 all the time, and the part of structure can be held by an operator, so that the rotating body 312, the connecting part 32 and the pre-pressing part 33 can be controlled to rotate conveniently, and meanwhile, the operator can apply force to the rotating body 312, so that the pre-pressing part 33 can abut against an object to be assembled before the cover plate 2 covers the rotating body, and the pre-fixing stability is improved.

The connecting portion 32 is a member for connecting the rotating portion 31 and the prepressing portion 33, and is also a target directly receiving the pressure from the cover 2. After the cover plate 2 covers the open end of the first receiving groove 121, the connecting portion 32 will abut against the cover plate 2 and receive a pressure directed from the cover plate 2 to the base 1, and the connecting portion 32 can transmit this pressure to the pre-pressing portion 33 so as to tightly abut against the object to be assembled.

The prepressing portion 33 is a member for abutting against the object to be assembled. Specifically, as shown in fig. 6, the pre-pressing portion 33 can be tightly pressed on the rear-view bracket 02 along a direction from the cover plate 2 to the base 1 under the pressure of the cover plate 2, so that the rear-view bracket 02 is difficult to move relative to the middle frame 01 in a direction parallel to the opening end of the first accommodating groove 121 and in a direction perpendicular to the opening end of the first accommodating groove 121, thereby ensuring that the assembling screw hole 00 of the middle frame 01 and the assembling screw hole 00 of the rear-view bracket 02 are accurately aligned, avoiding strong extrusion or even damage to an object to be assembled caused by incorrect positions during screw assembling, and improving the convenience and accuracy of assembling screws.

In order to prevent the prepressing portion 33 from scratching the object to be assembled, referring to fig. 6, the pre-fixing structure 3 may further include a protection cushion block 331, the protection cushion block 331 is connected to one side of the prepressing portion 33 facing the first accommodating groove 121, and the prepressing portion 33 abuts against the object to be assembled through the protection cushion block 331. The protection pad 331 can be made of a soft material, such as soft silicone rubber, soft rubber, etc. Meanwhile, based on the material characteristics of the protection cushion block 331, the anti-skid pad can also play a certain anti-skid role.

In the embodiment of the present application, the rotating body 312, the connecting portion 32 and the prepressing portion 33 may be three separate structures connected in sequence, and the connecting manner may be bolt 1214 connection, welding, etc.; in other embodiments of the present invention, the rotating body 312, the connecting portion 32 and the prepressing portion 33 may be integrally formed, so as to have better connecting strength.

Alternatively, referring to fig. 5, the base 1 may further have a first magnet 14; the pre-fixing structure 3 further comprises a second magnet 34, and the second magnet 34 is connected with the pre-pressing part 33; the first magnet 14 and the second magnet 34 are positioned and attracted to each other, so as to further enhance the pressure of the pre-fixing structure 3 on the object to be assembled.

The size, shape and structure of the first magnet 14 and the second magnet 34 can be set according to the use requirement, as long as it is ensured that the first magnet 14 and the second magnet 34 can attract each other, and the attraction force between the two can meet the pressure increment requirement of the object to be assembled.

There are many ways of arranging the first magnet 14 and the second magnet 34, and two possible ways of arranging are described below:

in one possible arrangement method, as shown in fig. 5, the first magnet 14 may be located on the end surface of the base 1 covered by the cover 2 and outside the first receiving groove 121; the second magnet 34 may be attached to the side wall of the pre-pressing portion 33, and the first magnet 14 contacts the second magnet 34 when the pre-fixing structure 3 abuts against the object to be assembled.

In another possible arrangement method, the first magnet 14 may be located at the bottom of the first receiving groove 121, and the second magnet 34 may be connected to one side of the pre-pressing portion 33 facing the receiving groove, so that when the pre-fixing structure 3 abuts against the object to be assembled, the first magnet 14 and the second magnet 34 are corresponding to each other and attract each other at two sides of the object to be assembled.

Fig. 7 shows a structure of a cover plate 2 provided in an embodiment of the present application, where the cover plate 2 is rotatably connected to a base 1. Referring to fig. 7, the cover plate 2 includes a frame 21 and a cover 22, and the frame 21 and the cover 22 are detachably connected; the frame 21 surrounds the face cover 22, a first end 211 of the frame 21 is hinged with the base 1, a second end 212 of the frame is clamped with the base 1, and the first end 211 is opposite to the second end 212; the face cover 22 is provided with a screw positioning hole 221 and a notch 222, the size of the notch 222 is larger than that of the prepressing part 33, and an orthographic projection of the prepressing part 33 on a plane where the face cover 22 is located in the notch 222.

Specifically, when the cover plate 2 covers the opening end of the first receiving cavity 121, the pressing portion 33 of the pre-fixing structure 3 is exposed from the notch 222 of the face cover 22. The position of the notch 222 is usually closer to the position of the screw positioning hole 221, so that the position of the prepressing portion 33 abutted on the object to be assembled is closer to the assembling screw hole 00, thereby ensuring the stability of the assembling screw hole 00.

The positions of the assembly screw holes 00 may be different for different objects to be assembled. In order to meet the screw assembly requirements of the objects to be assembled and improve the universality of the screw assembly jig, the surface cover 22 of the cover plate 2 is arranged into a replaceable structure. The cover plate 2 includes at least two face covers 22, the positions of the screw positioning holes 221 and the notches 222 of the at least two face covers 22 are different from each other, the frame 21 can be connected with one face cover 22 of the at least two face covers 22, and the screw positioning holes of the face cover 22 correspond to the assembly screw holes 00 of the object to be assembled. Wherein each face cover 22 and the frame 21 are detachably connected, for example, they can be connected by screws or clamped. When a new object to be assembled needs to be assembled by screws, the installed face cover 22 can be replaced, the original face cover 22 is detached from the frame 21, and the face cover 22 having the screw positioning hole 221 corresponding to the assembling screw hole 00 of the new object to be assembled is selected from at least two face covers 22 and installed on the frame 21. In order to facilitate viewing of the object to be assembled, in some embodiments of the present application, the cover 22 may be made of a transparent material.

In the embodiment of the present application, along with the adjustment of the assembly screw hole 00 of the object to be assembled and the position of the notch 222 on the surface cover 22, the connection position of the pre-fixing structure 3 and the base 1 may also be adjusted correspondingly. As shown in fig. 4, the side wall of the base 1 has a plurality of first connecting structures 112; the rotating base 311 has a second connecting structure 3112, and the second connecting structure 3112 is connected to one of the first connecting structures 112, so that an orthogonal projection of the pre-pressing portion 33 on the bottom of the first accommodating groove 121 is not overlapped with an orthogonal projection of the screw positioning hole 221 on the bottom of the first accommodating groove 121.

The orthographic projection of the prepressing section 33 on the groove bottom of the first accommodating groove 121 and the orthographic projection of the screw positioning hole 221 on the groove bottom of the first accommodating groove 121 are not overlapped, so that the prepressing section 33 abuts against the assembling screw hole 00, the screw positioning hole 221 and the assembling screw hole 00 cannot be communicated, and a screw cannot be assembled.

The orthographic projection of the prepressing section 33 on the bottom of the first containing groove 121 is usually located in the orthographic projection of the notch 222 on the bottom of the first containing groove 121. Thus, a target first connection structure 112 can be determined among the plurality of first connection structures 112 according to the position of the notch 222 on the front cover 22, and the pre-pressing portion 33 is located in the notch 222 after the second connection structure 3112 is connected with the target first connection structure 112. Illustratively, the first connecting structure 112 may be a screw hole, the second connecting structure 3112 may be a screw hole configured with a screw, and the rotating base 311 and the base 1 are connected by a screw passing through the two screw holes; alternatively, the first connection structure 112 may be a groove or a through hole, the second connection structure 3112 may be a protrusion, and the protrusion of the rotating base 311 may be inserted into the groove or the through hole, so as to be connected with the base 1. Of course, the first connecting structure 112 and the second connecting structure 3112 may have other forms as long as the detachable connection can be realized, and the details are not described herein.

Alternatively, referring to fig. 8, one side edge of the frame 21 has an avoidance groove 215, the avoidance groove 215 opens toward the base 1 and the avoidance groove 215 penetrates the side edge in the width direction; the escape groove 215 corresponds to the position of the connection part 32, and the connection part 32 is located in the escape groove 215.

The avoidance groove 215 is a member for avoiding the pre-fixing structure 3. When the cover plate 2 covers the opening end of the first accommodation groove 121, the connection portion 32 of the pre-fixing structure 3 may enter the escape groove 215 from the escape groove 215 toward the opening of the base 1, and may abut against the groove bottom of the escape groove 215. The size of the screw assembling jig in the thickness direction is reduced by the arrangement of the avoiding groove 215, so that the structure of the screw assembling jig is more compact. And, based on the cooperation structure of connecting portion 32 and dodging groove 215, it is earlier rotatory to counterbalance with waiting to assemble the object with pre-fixed knot structure 3 to have decided the operation order, rotates apron 2 to counterbalance with pre-fixed knot structure 3 again, and this operation process logistics nature is strong, has improved the operation process structure and has prevented slow-witted.

Fig. 9 shows a structure of a base 1 provided in an embodiment of the present application, where the base 1 is rotatably connected to a cover 2. Referring to fig. 9, the base 1 includes a housing 11, a bottom mold 12, and an elastic member 13; the housing 11 has a second receiving groove 111, and the bottom mold 12 and the elastic member 13 are both located in the second receiving groove 111; the bottom mold 12 has a first receiving groove 121, and the bottom of the first receiving groove 121 has an avoidance opening 1211; one end of the elastic member 13 is connected to the bottom of the second receiving groove 111, and the other end protrudes from the escape opening 1211 to the bottom of the first receiving groove 121 and abuts against the object to be assembled.

The housing 11 is a member for carrying or accommodating the pre-fixing structure 3, the cover plate 2, the bottom mold 12, the elastic member 13, and other structures. The size and the material of the housing 11 can be set according to the use requirement, for example, the material of the housing 11 can be metal such as alloy and stainless steel, or engineering plastics such as PP and ABS with higher hardness and better wear resistance. The pre-fixing structure 3 is attached to the outer side wall of the housing 11, and the cover plate 2 is also attached to the housing 11.

The bottom mold 12 is a member for directly receiving the object to be assembled, and has a size and a shape corresponding to those of the second receiving groove 111 of the housing 11, and a thickness generally not greater than a height of a wall of the second receiving groove 111. The bottom mold 12 is fixedly connected to the housing 11, and may be connected to the bottom of the second receiving groove 111 by a screw, for example. The bottom die 12 can be determined according to the material of the object to be assembled, for example, when the object to be assembled is the middle frame 01 of the mobile phone and the rear-view support 02, the bottom die 12 can be made of bakelite, and the structure of the bottom die is rounded, so that the middle frame 01 and the rear-view support 02 are prevented from being scratched.

The elastic member 13 is used for limiting the movement of the object to be assembled so that the object to be assembled cannot be displaced relatively in a direction perpendicular to the opening end of the first receiving groove 121, thereby further ensuring the pre-fixing effect of the object to be assembled. The elastic element 13 is generally closer to the side of the base 1 remote from the prefixed structure 3, so as to make the load of the object to be assembled more uniform. For example, the elastic member 13 may be a spring, or other mechanical parts with elasticity.

As shown in fig. 10, in some embodiments of the present disclosure, the inner side wall of the first receiving groove 121 is provided with a plurality of limiting grooves 1212, and a groove bottom of each limiting groove 1212 is provided with a mounting hole; each limiting groove 1212 is provided with a limiting block 1213, each limiting block 1213 is provided with a strip-shaped hole 12131, and the bolt 1214 passes through the strip-shaped hole 12131 and the mounting hole to connect the limiting block 1213 and the limiting groove 1212 together; at least one of the plurality of limiting blocks 1213 protrudes from the inner sidewall of the first receiving groove 121 and abuts against the object to be assembled, so as to limit the object to be assembled to move in the first receiving groove 121.

The stopper 1213 is a member for restricting the movement of the object to be assembled in the first accommodation groove 121. The four side walls of the first receiving cavity 121 each have at least one limiting groove 1212 and a limiting block 1213 therein, taking the bottom die 12 structure shown in fig. 10 as an example, each side wall of the first receiving cavity 121 has two limiting grooves 1212, and each limiting groove 1212 has one limiting block 1213 movably connected to the limiting groove 1212. The two limiting grooves 1212 on each side wall extending in the length direction are symmetrically arranged with respect to the central axis M of the side wall, and the two limiting grooves 1212 on each side wall extending in the width direction are symmetrically arranged with respect to the central axis N of the side wall, so as to ensure that the object to be assembled is uniformly stressed.

The material of the limiting block 1213 may also be determined according to the material of the object to be assembled, and may be the same as or different from the material of the bottom mold 12, for example, when the object to be assembled is the middle frame 01 and the rear-view support 02 of the mobile phone, the limiting block 1213 may be made of the same bakelite material as the bottom mold 12, or may be made of a different rubber material from the bottom mold 12.

The size of the first receiving groove 121 is generally slightly larger than that of the object to be assembled. When the screw assembling jig is used, the middle frame 01 can be firstly placed into the first accommodating groove 121, and then the protruding distance of each limiting block 1213 from the limiting groove 1212 is adjusted, so that the middle frame 01 is tightly clamped between the limiting blocks 1213 or between the limiting blocks 1213 and the side wall of the first limiting groove 1212, and cannot move freely. For any limiting block 1213, the protruding distance from the limiting groove 1212 is adjusted by: the screws penetrating through the strip-shaped holes 12131 of the limiting block 1213 and the mounting holes of the limiting groove 1212 are dismounted, the position of the limiting block 1213 in the limiting groove 1212 is adjusted, the part of the limiting block 1213 protruding out of the inner side wall of the first accommodating groove 121 is made to abut against the object to be assembled, the current position of the limiting block 1213 is maintained, and the screws are tightened. The position of the screw in the slotted hole 12131 is now changed from before adjustment.

Alternatively, as shown in fig. 11, the first side wall 113 of the housing 11 has a second rotating shaft 114, the second side wall 115 of the housing 11 has a first clamping structure 116, and the first side wall 113 is opposite to the second side wall 115; the first end 211 of the cover plate 2 is rotatably connected with the base 1 through the second rotating shaft 114, the second end 212 of the cover plate 2 is provided with a second clamping structure 213, and the first end 211 is opposite to the second end 212; the first clamping structure 116 is adapted to be coupled with the second clamping structure 213.

The cover plate 2 may be turned over above the first receiving groove 121 by the second rotating shaft 114, so as to cover or be away from the opening end of the first receiving groove 121. For example, when the cover plate 2 is turned over to a position covering the open end of the first receiving groove 121, the second latching structure 213 of the cover plate 2 may be engaged with the first latching structure 116 of the housing 11 to keep the cover plate 2 at the current position, and in this position, the cover plate 2 may apply pressure to the connecting portion 32 of the pre-fixing structure 3, and at this time, an operator may assemble screws for the rear-view bracket 02 and the middle frame 01 through the screw positioning holes 221 on the front cover 22. After the assembly is finished, an operator can manually release the connection between the first clamping structure 116 and the second clamping structure 213, then turn over the cover plate 2 to the position far away from the open end of the first accommodating groove 121, rotate the pre-fixing structure 3 to the position far away from the open end of the first accommodating groove 121, and finally take out the middle frame 01 of the assembled rear-view support 02 from the first accommodating groove 121, so that the assembly work is completed.

In order to reduce the workload of the operator and improve the working efficiency, after the operator releases the connection between the first clamping structure 116 and the second clamping structure 213, the cover plate 2 may be further designed to be turned over to a position far away from the opening end of the first accommodating groove 121.

As shown in fig. 11, the screw assembling jig further includes a nitrogen spring 4. One end of the nitrogen spring 4 is connected to a third side wall 117 of the housing 11 and is close to the first side wall 113 of the housing 11, and the third side wall 117 is located between the first side wall 113 and the second side wall 115; the other end of the nitrogen spring 4 is connected with a third end 214 of the cover plate 2 and is close to the second end 212 of the cover plate 2, and the third end 214 is positioned between the first end 211 and the second end 212; when the first clamping structure 116 is connected with the second clamping structure 213 in a matching manner, the nitrogen spring 4 is in a contracted state.

Fig. 12 shows a force diagram of the nitrogen spring 4 when the first clamping structure 116 is connected with the second clamping structure 213. The nitrogen spring 4 is in a contracted state at this time, and exerts a force F on the lid plate 2. The force F has a horizontal component F1 and a vertical component F2, and when the first latch structure 116 and the second latch structure 213 are disconnected, the cover 2 will be gradually turned open by the vertical component F2, and the nitrogen spring 4 will be gradually stretched along with the turning of the cover 2 until the position shown in fig. 13 is reached. When the nitrogen spring 4 is in the position shown in fig. 13, the nitrogen spring 4 is in a stretched state and has a force F 'to the lid plate 2, the force F' having no horizontal component, so that the lid plate 2 can be held in the present position. Therefore, the nitrogen spring 4 can improve the convenience of using the screw assembly jig by an operator, and further improve the working efficiency.

In order to make the technical solutions and advantages of the present application more clear, the following detailed description will be given by means of alternative embodiments.

Referring to fig. 1, when screws need to be assembled on the middle frame 01 and the back-view bracket 02 of the mobile phone, an appropriate surface cover 22 may be selected according to the positions of the assembling screw holes 00 on the middle frame 01 and the back-view bracket 02, the positions of the screw positioning holes 221 on the selected surface cover 22 should correspond to the positions of the assembling screw holes 00, and then the selected surface cover 22 is fixed on the frame 21 of the cover plate 2.

The middle frame 01 is placed in the first accommodating groove 121 of the base 1, and the position of the limit block 1213 is adjusted to be abutted against the middle frame 01, so that the movement of the middle frame 01 in the first accommodating groove 121 is limited; then covering the rear camera support 02 at a corresponding position on the middle frame 01, and aligning the assembly screw hole 00 of the rear camera support 02 with the assembly screw hole 00 of the middle frame 01; the pre-fixing structure 3 is turned over by holding the part of the rotating body 312 outside the first accommodating groove 121, and a small force is applied to the pre-fixing structure 3, so that the pre-pressing part 33 of the pre-fixing structure 3 can stably abut against the rear-view bracket 02; the cover plate 2 is turned over while the force applied to the pre-fixing structure 3 is kept, so that the second clamping structure 213 of the cover plate 2 can be connected with the first clamping structure 116 in a matched manner, the part of the rotating body 312, which is positioned outside the first accommodating groove 121, is stopped to be held, the connecting part 32 of the pre-fixing structure 3 is positioned in the avoiding groove 215 of the cover plate 2, and pressure can be applied to the connecting part 32, the pressure can be transmitted to the pre-pressing part 33 connected with the connecting part 32, so that the pre-pressing part 33 can apply pressure to the rear-view support 02, and the position of the rear-view support 02 is prevented from being deviated.

Screws are placed into the assembly screw holes 00 from the screw positioning holes 221, and the screws are tightened using an electric screwdriver or a screwdriver. After the screws are screwed, the connection between the first clamping structure 116 and the second clamping structure 213 is released, the cover plate 2 is gradually opened under the action of the nitrogen spring 4, the pre-fixing structure 3 is manually turned over after the cover plate 2 is completely opened to be away from the first accommodating groove 121, and finally the rear-view support 02 and the middle frame 01 which are connected together through the screws are taken out. So, can accomplish the assembly of screw high-efficiently, fast to the assembling process is keeping the accurate counterpoint of screw all the time, can not cause the damage to center 01 and after taking photograph support 02 yet.

When the operator continuously works, the above steps need only be repeated, wherein if the rear view support 02 is always assembled for the middle frame 01 of the same model, the step of selecting and replacing the face cover 22 can be skipped.

In the present application, it is to be understood that the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.

The above description is only for facilitating the understanding of the technical solutions of the present application by those skilled in the art, and is not intended to limit the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (13)

1. The screw assembling jig is characterized by comprising a base (1), a cover plate (2) and a pre-fixing structure (3);

the base (1) is provided with a first accommodating groove (121), the first accommodating groove (121) is provided with an opening end, the first accommodating groove (121) is suitable for accommodating an object to be assembled, and an assembling screw hole (00) of the object to be assembled is exposed out of the opening end;

the cover plate (2) is rotatably or detachably connected with the base (1) to cover the opening end of the first accommodating groove (121), the cover plate (2) is provided with a screw positioning hole (221), and the screw positioning hole (221) corresponds to the assembly screw hole (00);

the pre-fixing structure (3) is rotatably or detachably connected to the side wall of the base (1), wherein a part of the pre-fixing structure (3) can be clamped between the base (1) and the cover plate (2), so that the part of the pre-fixing structure (3) located in the first accommodating groove (121) is abutted to the object to be assembled.

2. The screw assembling jig according to claim 1, wherein the pre-fixing structure (3) comprises a rotating part (31), a connecting part (32) and a pre-pressing part (33) which are connected in sequence;

the rotating part (31) is connected with the side wall of the base (1) and can rotate around the connection part of the rotating part and the base (1) so as to drive the connecting part (32) and the prepressing part (33) to be close to or far away from the first accommodating groove (121);

the connection (32) is clamped between the base (1) and the cover (2);

the prepressing part (33) is abutted against the object to be assembled at the opening end of the first accommodating groove (121).

3. The screw fitting jig according to claim 2, wherein the rotating portion (31) includes a rotating seat (311) and a rotating body (312);

the rotating seat (311) is connected with the side wall of the base (1), and the rotating seat (311) is provided with a first rotating shaft (3111);

the rotating body (312) is sleeved on the first rotating shaft (3111) and can rotate around the axis of the first rotating shaft (3111).

4. The screw assembling jig according to claim 3, wherein the side wall of the base (1) is provided with a plurality of first connecting structures (112);

the rotating seat (311) is provided with a second connecting structure (3112), and the second connecting structure (3112) is connected with one of the first connecting structures (112), so that the orthographic projection of the prepressing part (33) on the bottom of the first accommodating groove (121) is not overlapped with the orthographic projection of the screw positioning hole (221) on the bottom of the first accommodating groove (121).

5. Screw fitting jig according to claim 2 characterized in that the base (1) has a first magnet (14);

the pre-fixing structure (3) further comprises a second magnet (34), and the second magnet (34) is connected with the pre-pressing part (33);

the first magnet (14) and the second magnet (34) are positioned and attracted to each other.

6. The screw assembling jig according to any one of claims 2 to 5, wherein the pre-fixing structure (3) further comprises a protection cushion block (331), and the protection cushion block (331) is connected with one side of the pre-pressing portion (33) facing the first accommodating groove (121);

the prepressing part (33) is abutted against the object to be assembled through the protective cushion block (331).

7. The screw assembling jig is characterized in that the cover plate (2) comprises a frame (21) and a face cover (22), and the frame (21) is detachably connected with the face cover (22);

the frame (21) surrounds the face cover (22), a first end (211) of the frame (21) is hinged to the base (1), a second end (212) of the frame is clamped with the base (1), and the first end (211) is opposite to the second end (212);

the face cover (22) is provided with the screw positioning hole (221) and a notch (222), the size of the notch (222) is larger than that of the prepressing part (33), and the orthographic projection of the prepressing part (33) on the plane of the face cover (22) is located in the notch (222).

8. The screw fitting jig according to claim 7, wherein the cover plate (2) includes at least two face covers (22), and positions of the screw positioning holes (221) and the notches (222) of the at least two face covers (22) are different from each other;

the frame (21) is connected with one face cover (22) of the at least two face covers (22), and the screw positioning holes (221) of the face covers (22) correspond to the assembly screw holes (00) of the object to be assembled.

9. The screw fitting jig according to claim 7, wherein one side edge of the bezel (21) has an avoiding groove (215), the avoiding groove (215) opens toward the base (1) and the avoiding groove (215) penetrates the side edge in the width direction;

the avoidance groove (215) corresponds to the position of the connecting part (32), and the connecting part (32) is positioned in the avoidance groove (215).

10. The screw assembling jig according to claim 1, characterized in that the base (1) comprises a housing (11), a bottom die (12) and an elastic member (13);

the shell (11) is provided with a second containing groove (111), and the bottom die (12) and the elastic piece (13) are both positioned in the second containing groove (111);

the bottom die (12) is provided with the first containing groove (121), and the bottom of the first containing groove (121) is provided with an avoidance opening (1211);

one end of the elastic piece (13) is connected with the bottom of the second containing groove (111), and the other end of the elastic piece protrudes out of the bottom of the first containing groove (121) from the avoiding opening (1211) and abuts against the object to be assembled.

11. The screw assembling jig of claim 10, wherein the inner side wall of the first receiving groove (121) is provided with a plurality of limiting grooves (1212), and the groove bottom of each limiting groove (1212) is provided with a mounting hole;

each limiting groove (1212) is internally provided with a limiting block (1213), each limiting block (1213) is provided with a strip-shaped hole (12131), and a bolt (1214) passes through the strip-shaped hole (12131) and the mounting hole to connect the limiting block (1213) and the limiting groove (1212) together;

at least one of the limiting blocks (1213) protrudes out of the inner side wall of the first accommodating groove (121) and abuts against the object to be assembled, so that the object to be assembled is limited from moving in the first accommodating groove (121).

12. The screw assembling jig of claim 10, wherein the first side wall (113) of the housing (11) is provided with a second rotating shaft (114), the second side wall (115) of the housing (11) is provided with a first clamping structure (116), and the first side wall (113) and the second side wall (115) are opposite;

the first end (211) of the cover plate (2) is rotatably connected with the base (1) through the second rotating shaft (114), the second end (212) of the cover plate (2) is provided with a second clamping structure (213), and the first end (211) is opposite to the second end (212);

the first clamping structure (116) is suitable for being matched and connected with the second clamping structure (213).

13. The screw assembly jig of claim 12, further comprising a nitrogen spring (4);

one end of the nitrogen spring (4) is connected with a third side wall (117) of the shell (11) and is close to the first side wall (113) of the shell (11), and the third side wall (117) is positioned between the first side wall (113) and the second side wall (115);

the other end of the nitrogen spring (4) is connected with a third end (214) of the cover plate (2) and is close to a second end (212) of the cover plate (2), and the third end (214) is positioned between the first end (211) and the second end (212);

when the first clamping structure (116) is connected with the second clamping structure (213) in a matched mode, the nitrogen spring (4) is in a contraction state.

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